<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">
        <meta http-equiv="Content-Security-Polity" content="script-src 'self'; form-src: 'self'">
        <title>Document</title>
    </head>
    <body>
        <div>This is text</div>
        <div id="app"></div>
        <form action="http://www.baidu.com">
            <button type="submit">baidu</button>
        </form>
        <img src='http://img2.imgtn.bdimg.com/it/u=3684195134,2782784980&fm=26&gp=0.jpg'/>
        <script>console.log('inline js')</script>
        <script src="test.js"></script>
        <script type="text/javascript" src="https://unpkg.com/vue"></script>
    </body>
</html>